Support for tubular lamps



Oct. 8, 1940. Q K|LT|E v SUPPORT FDR TUBULAR LAMPS Inventor: Ordean Kiltie by Wow/ 1 M His Attorney 7 Filed Feb. 23, 1940 Patented Oct. 8, 1940 FFME SUPPORT FOR TUBULAR LAMPS Ordean Kiltie, Fort Wayne, Ind., assignor to General Electric Company, a corporation of New York Application February 23, 1940, Serial N 0.320,.227

Claims. (Cl. 248-50) My invention relates to supports for tubular trating the thickness of the wall l3 and the elelamps such as gaseous electric discharge lamps, ments of the support illustrated in greater deand more particularly to resilient supports adapttail in Figs. 3 and 4. ed for mounting such lamps on automotive ve- Fig. 3, as above stated, illustrates a cross-sechide tional view of a resilient support, such as illus- O-ne object of my invention is to provide a suptrated in Figs. 1 and 2, taken along the aXisof port which will absorb the vibrations set up in the tubular lampsupported thereby. The, supan automotive vehicle and support the glass tube port consists of resilient washers or pads 20 and of a lamp sufiiciently constant to minimize and, 2|, preferably round and preferably made of substantially, to eliminate breakage. Sponge rubber. These washers are placed or 1 Forabetter understanding of my invention, ton e on pp i si s of the wall I3. A gether with other and further objects thereof, washer, or plate, 22 is placed concentrically with reference is had to the following description t Washer li upon its outer surface, and a taken in connection with the accompanying Washer. o p 23 is placed concentric with drawing, and its scope will be pointed out in the and on the outer surface of the washer 2|. The 15 appended l i washers 22 and 23 may beof metal, fibre, or Automotive vehicle bodies are constructed of Other S able r g d a erial, O they may be relatively thin sheet iron in which vibrations are ad of s -r d at r al if e pt nal reset up by the operation of the engine, as well as siliehcy iS required in the supp The W she s the movement of the h1 1 The vibrations 20 to 23 are tied together by a suitable thread 20 set up by the operation of the engine are of a rela- Wire d preferably y means of a Wire p tively constant magnitude and of a relatively high s Wire p 24 is aped and of a relafrequency, while the vibrations set up by the tively S-tiir e having one arm 25 projecting movement of the vehicle are of an uneven characthrough s table holes in the washers 20 to 23 25 ter,'both as to magnitude and frequency. Gaseous d n t Wall 3- The end 26 of this one arm 25 electric discharge lamps which are made of thin 25 is bent into a l p o a e the surface of walled glass tubes with various grades of glass Wtieher 23 and to prevent the Washer S pp are subject to breakage unless these vibrations Off the end of this e S d a m 21 of are absorbed before reaching the glass tubes. this Clip j s rough another set of aligned These t b are necessarily upported t widely holes in the washers 20 to 23 and through a hole 30 spaced points for the reason that a continuous in the a his arm is also bent into a loop support for the glass tube is impractical. These at its e 23 t engage e su ace of Washer 23 glass tubes cover a relatively large area and the and thereby prevent the Washer 23 Slipping Off vibrations set up in any surface of such area the end of this The ps 6 and 28 are may produce bends in the glass tubing, and thereea'sily formed y p y p d pl The 35 by breakage. wire used for this purpose being relatively stiff, In accordance with my invention, I provide a the loops 26 and 23 retain their ape a a t upport having i effe t t resilient links the resiliency of the rubber. The loops are furtherein, the resiliency of these links having difthel used to Piece rubber p s and 2| under 40 ferent resistances to vibration, and thereby Compression y merely reasing the turns in 40 adapted t absorb t above-mentioned vibmthe loops, the wire is shortened and the rubber tions set up in an automotive vehi le. pads are placed under a compression correspond- I the accompanying drawing, Fig; 1 ill-u ing to the extent of these turns. The holes 25 trates a front elevation of a gaseous electric disand 27 in the Wall are sumciently large to charge tube mounted upon a section of a vehicle Permit a free movement of the p arms in rewall by means of supports made in accordance se t Vibrations et p in e Wall so with my invention; Fig. 2 is an end View of the that the two rigid washers 22 and 23, being conlamp shown in Fig. 1; Fig. 3 is a cross-sectional nected by the metallic clip 24, may move as a View of a support built in accordance with my unit relatively to the wall. The compression of invention; and Fig. 4 is a plan view thereof. these washers may be adjusted or tuned to ab- 50 Referrin to the drawing in d il, Fi 1 i sorb the high frequency Vibrations transmitted lustrates a lamp l0 provided with terminals ll through the wall l3. The tubing of the lamp and I2 mounted upon a section of a vehicle wall In is attached to the support builtof the wash- I 3 by means of resilient supports l4, l5, I6, I I, ers 20 to 23 by means of a wire 29 or other flexand I8. Fig. 2 is an end view of this lamp illusible thread. This wire or thread is threaded 55 through two holes in the washer 23, these holes being placed intermediate the holes for the clips 24. Another resilient pad 30 made preferably of sponge rubber is placed between the tubing l0 and the washer 23. The wire 29 extends through the pad 30 on opposite sides of the tube and is twisted about the tubing of the lamp to anchor the tubing to the support. The pressure with which the tube is tied or anchored to the pad 30 places this pad under less compression than the compression under which the pads 20 and 2i are placed.

In operation, the above-described support absorbs the relatively high order of frequencies and substantially constant magnitude vibrations of the wall i3 set up by the vibration of the engine in the automotive vehicle. The pads 20 and 2 l are for this purpose placed under a compression which is adjusted by the loops on the end of the wire clip arms 25 and 27. Additional resiliency is obtained through the pad 36 between the rigid washer and the lamp tubing; this pad absorbing the vibrations of a higher magnitude and of a record order of frequencies set up by the motion of the vehicle. This latter pad 3!? is placed under a relatively lower compression by the wire 29. This combination of resilient and relatively rigid elements has proved in practice to be of great advantage in supporting glass tubing and has substantially eliminated breakage of the tubes caused by such vibrations.

What I claim as new and desire to secure by Letters Patent of the United States is:

1. In a gaseous discharge lamp mounting, the combination of resilient pads arranged on opposite sides of a supporting wall, rigid plates mounted on the surface of said pads, a binding thread projecting through said plates and said supporting wall for connecting said plates to each other, said thread being movable freely through said wall to allow movement of said two connected plates relatively to said wall, a third resilient pad mounted on the outer surface of one of said plates, a binding thread looped through said last-mentioned plate projecting through said last-mentioned pad and arranged to fasten a tubular lamp to the outer surface of said lastmentioned pad.

2. In a gaseous discharge lamp mounting, the

, combination of a resilient pad mounted upon each of two opposite sides of a supporting wall, a rigid disk upon the outer surface of each of said resilient pads, a wire connecting said disks projecting through said supporting wall and freely movable through said wall, said wire being adjustable to place said resilient pads under a desired compression, a resilient pad on the other side of one of said disks, a wire anchored in said last-mentioned disk projecting through said lastmentioned resilient pad and arranged to bind a gaseous discharge lamp to the surface of said last-mentioned pad.

3. In a tubular lamp mounting, the combination of soft rubber pads arranged on opposite sides of a supporting wall, metal plates on said pads, a binding wire extending freely through said wall and arranged to bind said metal plates to each other, the ends of said wire being looped and adjusted to place said rubber pads under a desired compression, a rubber pad placed between one of said plates and the lamp, and a binding wire anchored in said plate arranged to extend through said last mentioned pad and bind said lamp to said pad.

4. In a tubular lamp mounting, the combination of resilient pads arranged on opposite sides of a supporting wall, rigid plates mounted on the surface of said pads, a binding thread projecting through said plates and said supporting wall, said thread connecting said plates to each other and placing said pads under a desired compression, said thread being movable freely through said wall to permit movement of said two connected plates relatively to said wall in response to vibrations of an order of frequencies affected by said compresed pads, a third resilient pad mounted on the outer surface of one of said plates, a binding thread looped through said last-mentioned plate and arranged to fasten a tubular lamp to the outer surface of said last-mentioned pad, said binding being arranged to place said last-mentioned pad under compression, this compression being less than the compression of the first-mentioned pads thereby to compensate for vibrations of a second order of frequencies.

5. In a tubular lamp mounting, a combination of soft rubber pads arranged on opposite sides of a supporting wall, metal plates on said pads, a binding-wire extending freely through said wall and arranged to bind said metal plates to each other, the ends of said wire being looped and adjusted to place said rubber pads under a desired compression for effectively absorbing vibrations of a predetermined order of frequencies, a rubber pad placed between one of said plates and a tubular lamp, and a binding wire anchored in said last-mentioned plate arranged to extend through said last-mentioned pad and adjusted to bind said tubular lamp to said pad in a manner to place said last-mentioned pad under a compression which is less than the compression placed upon the first-mentioned pads thereby to absorb vibrations of a second order of frequencies,

ORDEAN KILTIE. 

